Grade - Grobholz-thailand

Wood quality

Thickness
12,16,18,20,22,25,30,30+ (thickness)

Quality A
No flaws (no wood eyes and wood filling)1

Quality B
There are little wooden eyes.3

Quality C1
With white wood eyes, no black wood eyes, no wood filling4

Quality C
With black wood eyes and white wood eyes, moderate wood

Quality D
With black-eyed wood and white-eyed wood, a lot of wood, with wood cracked in 1-3 sheets, every cracked grade (A-C) cut down to D grade

– width of wood not less than 40 cm

– Color selection in harmony (grade only)

– No moths (through the compression of the system according to the standard quality system)

– For thickness 0.5 cm, width 5 cm, length 10 cm

– Polishing sandpaper 240